Poll: What's happened to Jeb Bush?

He was once the clear frontrunner for the GOP 2016 presidential nomination. Then, while candidates like Donald Trump emerged, he was still seen by many Republicans as the likely nominee. But now former Florida Governor Jeb Bush runs behind Trump, neurosurgeon Ben Carson and Florida Senator Marco Rubio. Bush is just about tied with Texas Senator Ted Cruz and businesswomen Carly Fiorina in the latest Economist/YouGov Poll.

Bush receives hardly any support this week from conservative Republicans, who make up the majority of his party. Just 4% of conservative Republicans favor Bush. This Economist/YouGov Poll was conducted among a sample about twice as large as that of most public polls. Since about 500 sample members are Republicans, it possible to look at some subgroups.